fuwuqi.cpp

windows socket 编程实现的会话通信服务器端程序

#include "Winsock.h"
#include "windows.h"
#include "stdio.h"
#pragma comment(lib,"wsock32.lib")
#define RECV_PORT 2000
#define SEND_PORT 3000

SOCKET sock,sock1;
sockaddr_in ServerAddr;
sockaddr_in ClientAddr;
int Addrlen;

DWORD StartSock()
{
	WSADATA WSAData;
    if (WSAStartup(MAKEWORD(2,2),& WSAData)!=0)//初始化套接字
	{
		printf("sock init fail! \n");
		return(-1);
	}
	return(1);
}
DWORD CreateSocket()
{
	sock=socket(AF_INET,SOCK_STREAM,0);//创建套接字
	if (sock==SOCKET_ERROR)
	{
		printf("sock create fail! \n");
		WSACleanup();
		return(-1);
	}
	ServerAddr.sin_family=AF_INET;//填充服务器地址及端口
	ServerAddr.sin_addr.s_addr=htonl(INADDR_ANY);
	ServerAddr.sin_port=htons(RECV_PORT);
	if (bind( sock, (struct sockaddr FAR *) &ServerAddr,sizeof(ServerAddr)) == SOCKET_ERROR)// 绑定套接字
	{
		printf("bind is the error");
		return(-1);
	}
	return(1);
}
DWORD ConnectProcess()
{
	char buff[80];
	Addrlen=sizeof(sockaddr_in);
	if (listen( sock,5) <0)//置本地套接字为侦听模式
	{
		printf("Listen error");
		return(-1);
	}
	printf("Listening...\n");
	for (;;)
	{
		sock1 = accept( sock,(struct sockaddr FAR *) &ClientAddr,&Addrlen);//接受连接
		for (;;)
		{
			memset(buff,0,80);
			if (recv(sock1,buff,80,0)<=0)
			{
				break;
			}
			printf(buff);
			printf("\n");
		}
	}
}

int main()
{
	if (StartSock() ==-1)
		return(-1);

	if (CreateSocket() ==-1)
		return(-1);

	if (ConnectProcess() ==-1)
		return(-1);

	return(1);
}